Source code for taurus.qt.qtgui.input.tauruswheel

#!/usr/bin/env python

#############################################################################
##
## This file is part of Taurus
## 
## http://taurus-scada.org
##
## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
## 
## Taurus is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
## 
## Taurus is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU Lesser General Public License for more details.
## 
## You should have received a copy of the GNU Lesser General Public License
## along with Taurus.  If not, see <http://www.gnu.org/licenses/>.
##
#############################################################################

"""This module provides a set of basic taurus widgets based on QWheelEdit"""

__all__ = ["TaurusWheelEdit" ]

__docformat__ = 'restructuredtext'

import taurus
from taurus.external.qt import Qt

from  taurus.core.taurusbasetypes import TaurusEventType
from taurus.qt.qtgui.base import TaurusBaseWritableWidget
from qwheel import QWheelEdit

[docs]class TaurusWheelEdit(QWheelEdit, TaurusBaseWritableWidget): __pyqtSignals__ = ('modelChanged(const QString &)',) def __init__(self, qt_parent = None, designMode = False): name = self.__class__.__name__ self.call__init__wo_kw(QWheelEdit, qt_parent) self.call__init__(TaurusBaseWritableWidget, name, designMode=designMode) self.connect(self, Qt.SIGNAL(QWheelEdit.NumberChangedStr), self.valueChanged) self.connect(self, Qt.SIGNAL('returnPressed()'), self.writeValue) self.connect(self, Qt.SIGNAL('valueChanged'), self.updatePendingOperations) #-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- # TaurusBaseWidget overwriting #-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
[docs] def handleEvent(self, evt_src, evt_type, evt_value): if evt_type == TaurusEventType.Config and evt_value is not None: import re # match the format string to "%[width][.precision][f_type]" m = re.match(r'%([0-9]+)?(\.([0-9]+))?([df])', evt_value.format) if m is None: raise ValueError("'%s' format unsupported" % evt_value.format) width, _, precision, f_type = m.groups() if width is None: width = self.DefaultIntDigitCount + \ self.DefaultDecDigitCount + 1 else: width = int(width) if precision is None: precision = self.DefaultDecDigitCount else: precision = int(precision) dec_nb = precision if dec_nb == 0 or f_type == 'd': int_nb = width else: int_nb = width - dec_nb - 1 # account for decimal sep self.setDigitCount(int_nb=int_nb, dec_nb=dec_nb) try: self.setMinValue(float(evt_value.min_value)) except: pass try: self.setMaxValue(float(evt_value.max_value)) except: pass TaurusBaseWritableWidget.handleEvent(self, evt_src, evt_type, evt_value)
[docs] def updateStyle(self): TaurusBaseWritableWidget.updateStyle(self) if self.hasPendingOperations(): self.setStyleSheet('QWheelEdit {border: 2px solid; border-radius: 4px; border-color: blue}') else: self.setStyleSheet('QWheelEdit {border: 2px solid; border-radius: 4px; border-color: rgba(0,0,255,0)}')
@classmethod
[docs] def getQtDesignerPluginInfo(cls): ret = TaurusBaseWritableWidget.getQtDesignerPluginInfo() ret['module'] = 'taurus.qt.qtgui.input' ret['icon'] = ":/designer/wheeledit.png" return ret
#-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- # QT properties #-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- model = Qt.pyqtProperty("QString", TaurusBaseWritableWidget.getModel, TaurusBaseWritableWidget.setModel, TaurusBaseWritableWidget.resetModel) useParentModel = Qt.pyqtProperty("bool", TaurusBaseWritableWidget.getUseParentModel, TaurusBaseWritableWidget.setUseParentModel, TaurusBaseWritableWidget.resetUseParentModel) autoApply = Qt.pyqtProperty("bool", TaurusBaseWritableWidget.getAutoApply, TaurusBaseWritableWidget.setAutoApply, TaurusBaseWritableWidget.resetAutoApply) forcedApply = Qt.pyqtProperty("bool", TaurusBaseWritableWidget.getForcedApply, TaurusBaseWritableWidget.setForcedApply, TaurusBaseWritableWidget.resetForcedApply)